Sabic Global Technologies B.v.

Christelle Marie Helene Grein

Benoit Therese Philippe Lecouvet

Maria Soliman

Rick Robert Emilie Bercx

Carmela Tufano

Rob Donners

Chaodong Jiang

Jose Sales Fernandez

Jing Guo

Ratnesh Khandelwal

Frank Heessels

Yuan Qin

Muhammad Farooq

Adrianus Franciscus Petronella Maria Willigers

Carmen Rocio Misiego Arpa

Leonardus Jacobs

Mahari Tjahjadi

Ting Huang

Weisong Gao

Liang Wen

Chunfa Li

Xiaomei Shi

Hongtao Shi

Yang Yang

Xin Kong

The invention relates to a pellet comprising a thermoplastic polymer sheath intimately surrounding glass filaments, which glass filaments are covered at least in part with an impregnating agent and extend in a longitudinal direction of said pellets, wherein the thermoplastic polymer sheath is prepared from a thermoplastic polymer composition comprising A) a heterophasic propylene copolymer consisting of a propylene-based matrix and a dispersed ethylene-&#x3b1;-olefin copolymer, wherein the heterophasic propylene copolymer has a melt flow rate of at least 40 g/10 min as determined in accordance with ISO 1133 (230&#xb0; C., 2.16 kg) and a FOG value of at most 350 &#x3bc;g/g as determined by VDA 278, wherein the glass filaments are present in an amount of 10-70 wt % based on the pellet.

Pellet comprising thermoplastic polymer sheath surrounding glass filaments having reduced emissions

The invention relates to a process for the preparation of a propylene homopolymer or a propylene &#x3b1;-olefin random copolymer comprising the step of a) preparing a propylene homopolymer or a propylene &#x3b1;-olefin random copolymer, wherein the &#x3b1;-olefin is chosen from the group consisting of ethylene, and &#x3b1;-olefins having 4 to 10 carbon atoms, for example 1-butene or 1-hexene by contacting at least the propylene and optionally &#x3b1;-olefin, with a catalyst in a gas-phase reactor at a temperature T1 and a pressure P1, wherein T1 is chosen in the range from 75 to 90&#xb0; C., for example in the range from 77 to 85&#xb0; C., for example in the range from 78 to 83&#xb0; C., wherein P1 is chosen in the range from 22 to 30 bar to prepare a propylene homopolymer (A') or a propylene &#x3b1;-olefin random copolymer (A&#x2032;).

Process for manufacture of low emission homopolymer or random polypropylene

The invention relates to a tape comprising a plurality of sheathed continuous multifilament strands, wherein each of the sheathed continuous multifilament strands comprises a core that extends in the longitudinal direction and a polymer sheath which intimately surrounds said core, wherein each of the cores comprises an impregnated continuous multifilament strand comprising at least one continuous glass multifilament strand, wherein the at least one continuous glass multifilament strand is impregnated with an impregnating agent in an amount from 0.50 to 15.0 wt %, for example from 0.5 to 10.0 wt % or for example from 10.0 to 15.0 wt % based on the sheathed continuous multifilament strand, wherein the impregnating agent has a melting point of at least 20&#xb0; C. below the melting point of the thermoplastic polymer composition, has a viscosity of from 2.5 to 200 cSt at 160&#xb0; C., wherein the continuous glass multifilament strand comprises at most 2 wt % of a sizing composition based on the continuous glass multifilament strand and wherein the polymer sheath consists of a thermoplastic polymer composition, wherein the thermoplastic polymer composition comprises at least 60 wt %, for example at least 80 wt % of a thermoplastic polymer, wherein the amount of impregnated continuous multifilament strand is in the range of 10 to 70 wt % based on the sheathed continuous multifilament strands and wherein the amount of polymer sheath is in the range of 30 to 90 wt % based on the sheathed continuous multifilament strand and wherein the sum of the amount of impregnated continuous multifilament strand and the polymer sheath is 100 wt %.

Tape of a plurality of sheathed continuous multifilament strands

The invention relates to a bicycle frame made by injection molding pellets of a long glass fibre reinforced polypropylene composition having a core containing glass fibres and an impregnating agent and a sheath of polypropylene surrounding said core, wherein the pellets have an average length of at least 1 mm, the amount of the glass fibers is 10 to 70 wt % with respect to the composition and the polypropylene has a flexural modulus determined according to ASTM D790A of at least 1000 N/mm.

Bicycle frame

The invention relates to a process for the preparation of a final heterophasic propylene copolymer (A) having a final melt flow rate in the range from 65 to 110 dg/min, comprising visbreaking an intermediate heterophasic propylene copolymer (A') having an intermediate melt flow rate, which intermediate melt flow rate is lower than the final melt flow rate, to obtain the final heterophasic propylene copolymer, wherein the intermediate heterophasic propylene copolymer (A&#x2032;) consists of (a) a propylene-based matrix, (b) a dispersed ethylene-&#x3b1;-olefin copolymer, wherein the sum of the total amount of propylene-based matrix and total amount of the dispersed ethylene-&#x3b1;-olefin copolymer in the intermediate heterophasic propylene copolymer is 100 wt % based on the intermediate heterophasic propylene copolymer.

Heterophasic propylene copolymer

The invention relates to a process for the preparation of a heterophasic propylene copolymer consisting of a propylene-based matrix and a dispersed ethylene-a-olefin copolymer, comprising the steps of a) preparing the propylene-based matrix from propylene and optionally a C2 or C4-C12 &#x3b1;-olefin by contacting at least propylene and optionally C2 or C4-C12 a-olefin with a catalyst in a first gas-phase reactor at a temperature T1 and a pressure P1, b) subsequently preparing the dispersed ethylene-&#x3b1;-olefin copolymer from ethylene and a C3-C12 &#x3b1;-olefin by contacting the ethylene and the C3-C12 &#x3b1;-olefin with a catalyst in a second gas-phase reactor at a temperature T2 and a pressure P2, wherein T1-T2 is in the range from 6 to 25&#xb0; C., wherein T1&#x3e;T2, wherein PI and P2 are in the range from 22 to 30 bar to prepare a heterophasic propylene copolymer (A').

Process for manufacture of low emission heterophasic polypropylene

Growing community of inventors

Geleen, Netherlands

Christelle Marie Helene Grein